Filter.



No- 856,832. PATENTED JUNE 11, 1907. A. L. ANDERSON.

FILTER.

APPLICATION FILED FEB. 26, 1967.

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UNITE STATES PATENT orrren.

FILTER.

Specification of Letters Patent.

Patented June 11, 1907.

Application filed February 26,1907. Serial No. 359,372.

1'0 (.t/(l whom, it may col warn:

Be it known that 1, ANDERS L. Axnnnsox, a citizen of the United States,residing at Gayville, in the county of Yankton and State of SouthDakota, have invented new and useful Improvements in Filters, of whichthe following is a specification.

This invention relates to filters designed especially for filtering thewater from water sheds prior to its delivery into cisterns, and has forits objects to produce a comparatively simple, inexpensive device ofthis character, which may be readily installed for use, one whereby thewater will be thoroughly filtered and purified, and one in which thefiltering material may be conveniently renewed or cleaned from time totime as circumstances re uire.

further object of the invention is to provide a device of this class inwhich the water will enter freely into the filter, one wherein the Waterwill after passing through the filtering material be freely discharged,and one in which the sediments accumulating in the filter may be readilyremoved.

lVith these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings,-1*igure 1 is a vertical longitudinalsection taken contrally through a filter embodying the invention. Fig.2is a top plan view of the filter. Fig. 3 is a vertical transversesection thereof with the filtering material removed. Fig. 1 is avertical section through the strainer tube or trap.

Referring to the drawing, 1 designates a filtering tank or vesselcomposed of sheet metal or other suitable material and comprising sidewalls 2, end walls 3, a bottom 4 and a removable cover 5, the latterbeing provided with a depending flange 6 adapted to engage a bead or rim7 formed at the upper edges of the walls of the vessel.

Arranged within the vessel 1 is a removable filtering box 8, preferablyformed of sheet metal, and comprising side walls 9, a bottom 10 and anend wall 11, said box being open at the top and at its opposite end, asshown. The box may be formed of a single piece of sheet metal bent intothe described form, and the bottom 10 is preferably elevated to form achannel 12 between it and the bottom Wall 4: of the vessel 1, the sheetmetal being folded at the points of junction of the walls 9 and 10 toprovide longitudinal side flanges or feet 13 resting on the wall 4 andsupporting the box 8.

Disposed within the box 8 is a receptacle 141 designed to be filled witha charge of charcoal or other appropriate filtering roaterial 15, saidreceptacle being formed by portions of the side walls 9 of the box inconjunction with end walls 16 of wire garze or other re tic'elatedfabric suitably held in position or fastened at its lower and side edgesto the bottom and side walls of the box. The filtering receptacle 1% isdisposed about centrally of the length of the tank 1, but closer to theopen than to the closed end of the box, the end wall 11 of which latterbears against or is arranged closely adjacent to one of the end walls 3of the tank, the box being of less length than the tank, so that theconstruc tion and arrangement described provides within one end of thebox an inlet chamber or compartment 17 disposed between the head 11 andthe adjacent partition 16 and an outlet chamber or com mrtment 18located beyond the open end of the box and between the same and theopposite endv wall 3 of the tank. Hence it will be seen that thecompartments 1.7 and 18 are arranged on opposite sides of the body offiltering material, and that water entering eoi'npartnient 17 must flowthrough the bod of filtering material to the compartment 18, whereby thewa ter on its passage throrgh its filtering box is filtered.

Fixed to one of the upper corner portions of the tank 1 is an inlet pipe19 arranged above the compartment 17 and designed. to receive the end ofa rain spout (not shown), and formed on or in the bottom wall 41; at theend of the tank below the said compartment 17 is a drain tube or port 20communicating with the channel 12 and adapted to be closed by a screwcap 2-1. A discharge pipe 22 is secured. to the wall 4 at the base ofthe compartment 18 and projects a short distance upwardly into saidcompartment to receive the lower end of a strainer tube or trap 3extending vertically within said compartment and detachably fitted overthe projecting end of said pipe, so that said tube may be convenientlyremoved when occasion requires, as in the operatlon of cleansing thefilter. The trap or tube is preferably composed of a body 21 of stoutWire gauze and an inclosing shield or sheath 25 of wire gauze of a finerWeave or mesh, the stout wire of the body giving the required strengthand rigidity, while the finer sieve-like sheath prevents the dischargeof the fine washed-out particles of the filtering material with thepurified 1 Water through the pipe 22. It will be observed that one ofthe corners of the cover 5 is cut away, as at 26, to form a recess toreceive and accommodate the inlet pipe--19, so that the cover may beapplied and removed without interference from said pipe.

In practice, the water enters the compartment 17 through the inlet 19and percolates through the filtering material 15 into the compartment18, whence it discharges through the screen trap or tube 23 and pipe 22,being thereby filtered and screened. The filter may be flushed forcleansing the tank of foreign particles without removing the box byclosing the outlet 22 in any preferred manner and removing the cap 21 toallow the impurities to be washed out through the outlet 20. To cleansethe filter in a thorough manner, the cover 5 is removed, the strainertube 23 then detached and withdrawn, and the box 8 then slipped endwisewithin the tank so as to clear the inlet pipe 19 and then removed fromthe open top of the tank, whereupon all the parts of the apparatus maybe easily cleaned and the filtering material renewed, if required. Itwill be observed that the channel 12 forms a pocket or receptacle toreceive and retain any and all foreign particles passing with the waterthrough the body of filtering material, so that upon the removal of theparts above described the impurities may be washed out through the drainoutlet 20. Upon removing the cap 21 from time to time accumulatedimpurities may be allowed to discharge to prevent the same from cloggingthe filter, thus obviating the necessity of cleansing the filter atshort intervals.

Having thus described the invention, what is claimed as new, is

1. A filtering apparatus comprising a vessel having a top inlet and abottom outlet arranged at the opposite ends of the same, a removable boxwithin the vessel having a top inlet and open at one end, said box beingshorter than the vessel and having its closed end arranged adjacent theinlet end of the receptacle, a filtering receptacle within the boxarranged closer to the open than to the closed end thereof and formingWithin the box an inlet chamber and between the open end of the box anddischarge end of the receptacle an outlet compartment, and a strainercovering the outlet in said outlet compartment.

2. In a device of the class described, a vessel provided with spacedguides, a receptacle positioned between the guides and havingreticulated walls, a filtering material contained in the receptacle,said vessel being provided at one side of the receptacle with an inletcompartment and at the other side with a discharge compartment, an inletport leading to the inlet compartment, a discharge port leading from thedischarge compartment, a reticulated trap positioned in the latter overthe discharge port, and a drain port leading from the vessel, saidcompartments being wholly closed against communication one with theother except through the receptacle.

3. A filtering apparatus comprising a vessel having a top inlet and abottom outlet arranged at opposite ends of the same, a cover for closingthe vessel, a removable box within the vessel open at top and one end,said box being shorter than the vessel and having its'olosed endarranged adjacent the inlet end of the receptacle, a filteringreceptacle within the box arranged closer to the open than to the closedend thereof and forming within the box an inlet chamber and between theopen end of the box and discharge end of the receptacle an outletcompartment, and a strainer tube communicating with the outlet andextending vertically within said outlet compartment.

4. A filtering apparatus comprising a vessel having an inlet, an outlet,inlet andout let compartments respectively communicating therewith, abody of filtering material between said compartments, and a strainertube extending up into the outlet compartment and communicating with theoutlet, said tube comprising a body of coarse and a surrounding sheathof a finer mesh.

In testimony whereof, I affix my signature in presence of two witnesses.

ANDERS L. ANDERSON.

l/Vitnesses:

W. H. MoMAsTER,

L. N. GAsETH.

